This came up the other day across the web re: future Call of Duties but figured I'd share now.
Nothing in stone of course but there are reported worries from Sony about working with Activision as they have in a post-acquisition setting because of insider or underway developer, platform, and product information making its way to Activision owner Microsoft. With Sony long since the industry innovator and M/s not, that's a reasonable concern, IMO.
There's possibly a years-since precedent already set with Minecraft after Mojang (title developer) fell under M/s ownership. Sony's relationship with developer changed dramatically after the fact, I'll infer.